NullPointerException @ org.hibernate.type.IntegerType.next()

MarkusJ · **Posted:** Mon Dec 18, 2006 3:41 pm

Dear all

With Hiberate 3.1 I am getting a java.lang.NullPointerException
at org.hibernate.type.IntegerType.next(IntegerType.java:59)
when executing save() and flush() on an object which has just been created.

All docs and comments talk about a wrong unsaved-value mapping. But what does that mean?
I cannot really see anything.

At the moment I call save(); flush(); the version uc is null which is mapped as unsaved-value.

Could someone possibly point out some details which I overlooked? What could be wrong?

Any advice would be gratefully appreciated.

Markus

///////////////////////////////////////////////////////////////////////////
HBM mapping
///////////////////////////////////////////////////////////////////////////
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping
>
<class
name="com.softwareag.belgium.seibud.rmg.dao.AmdDeponentDAO"
table="DEPONENTS"
>
<id
name="id"
column="ID_DEPONENT"
>

<generator class="assigned">
</generator>
</id>
<version
name="updateCounter"
column="uc"
type="java.lang.Integer"
unsaved-value="null"
/>
<property
name="memberId"
column="ID_MEMBER"
>
</property>
<property
name="isRapporteur"
column="BL_RAPPORTEUR"
>
</property>
<property
name="instanceType"
column="TP_INSTANCE"
>
</property>
<property
name="bodyId"
column="ID_BODY"
>
</property>
<property
name="amendmentId"
column="ID_AMENDMENT"
>
</property>
<property
name="deponentNumber"
column="NO_DEPONENT"
>
</property>
<property
name="state"
column="state"
>
</property>
<property
name="lastUpdateTimestamp"
column="ts"
>
</property>
</class>
</hibernate-mapping>

///////////////////////////////////////////////////////////////////////////
Stack trace
///////////////////////////////////////////////////////////////////////////
20:35:19,775 DEBUG [bo] Changing state for AmdDeponent:499730 from null to created
20:35:19,775 DEBUG [bo] Persisting object AmdDeponent:499730 with uc=null, ts=null and state=created
20:35:19,790 ERROR [RqstLogger] rqstId: R1166470431361-4; status: failed (SysErr)
20:35:19,790 ERROR [RqstLogger] java.lang.NullPointerException
at org.hibernate.type.IntegerType.next(IntegerType.java:59)
at org.hibernate.engine.Versioning.increment(Versioning.java:25)
at org.hibernate.event.def.DefaultFlushEntityEventListener.getNextVersion(DefaultFlushEntityEventListener.java:360)
at org.hibernate.event.def.DefaultFlushEntityEventListener.scheduleUpdate(DefaultFlushEntityEventListener.java:250)
at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:121)
at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:195)
at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:76)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:993)
at com.softwareag.belgium.seibud.rmg.bo.BaseBO.xdoPersist(BaseBO.java:273)
at com.softwareag.belgium.seibud.rmg.bo.AmdDeponent.postCreate(AmdDeponent.java:995)
at com.softwareag.belgium.seibud.rmg.bo.AmdDeponent.create(AmdDeponent.java:979)
at com.softwareag.belgium.seibud.rmg.bo.AmdItem._modifyDeponents_nocheckSignificance(AmdItem.java:3110)
at com.softwareag.belgium.seibud.rmg.bo.AmdItem.modifyDeponents_nocheckSignificance(AmdItem.java:9241)
at com.softwareag.belgium.seibud.rmg.bo.AmdItem.createAmendment(AmdItem.java:810)
at com.softwareag.belgium.seibud.rmg.bo.AmdItem._addNew(AmdItem.java:431)
at com.softwareag.belgium.seibud.rmg.bo.AmdItem._addNew_syncwrapper(AmdItem.java:457)
at com.softwareag.belgium.seibud.rmg.bo.AmdItem.addNew_syncwrapper(AmdItem.java:7303)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

///////////////////////////////////////////////////////////////////////////
DAO code
///////////////////////////////////////////////////////////////////////////
/**
* Representation of a deponent.
*
* @hibernate.class table="DEPONENTS"
*
*/
public final class AmdDeponentDAO extends
com.softwareag.belgium.seibud.rmg.dao.BaseDAO {

protected String state;
private Integer updateCounter;
private Date lastUpdateTimestamp;

private Integer amendmentId;
private Integer deponentNumber;
private Integer bodyId;
private Integer memberId;
private String instanceType;
private Boolean isRapporteur;

/**
* @return String state
*
* @hibernate.property column="state"
*/
public String getState() {
return state;
}

/**
* @param newState
* new state
*/
public void setState(String newState) {
state = newState;
}

/**
* @return Integer update counter
*
* @hibernate.version column="uc" unsaved-value="null"
*/
public Integer getUpdateCounter() {
return updateCounter;
}

/**
* @param l
* new update counter
*/
protected void setUpdateCounter(Integer l) {
updateCounter = l;
}

/**
* @return Date of last update
*
* @hibernate.property column="ts"
*/
public Date getLastUpdateTimestamp() {
return lastUpdateTimestamp;
}

/**
* @param date
* of update
*/
public void setLastUpdateTimestamp(Date date) {
lastUpdateTimestamp = date;
}

/**
* Returns the value of memberId.
* @hibernate.property
* column="ID_MEMBER"
*/
public Integer getMemberId() {
return memberId;
}

/**
* Sets the value of memberId.
* @param memberId The value to assign memberId.
*/
public void setMemberId(Integer memberId) {
this.memberId = memberId;
}

/**
* Returns the value of isRapporteur.
* @hibernate.property
* column="BL_RAPPORTEUR"
*/
public Boolean getIsRapporteur() {
return isRapporteur;
}

/**
* Sets the value of isRapporteur.
* @param isRapporteur The value to value isRapporteur.
*/
public void setIsRapporteur(Boolean isRapporteur) {
this.isRapporteur = isRapporteur;
}

/**
* Returns the value of instanceType.
* @hibernate.property
* column="TP_INSTANCE"
*/
public String getInstanceType() {
return instanceType;
}

/**
* Sets the value of instanceType.
* @param instanceType The value to instanceType name.
*/
public void setInstanceType(String instanceType) {
this.instanceType = instanceType;
}

/**
* Returns the value of bodyId.
* @hibernate.property
* column="ID_BODY"
*/
public Integer getBodyId() {
return bodyId;
}

/**
* Sets the value of bodyId.
* @param bodyId The value to assign bodyId.
*/
public void setBodyId(Integer bodyId) {
this.bodyId = bodyId;
}

/**
* Returns the value of amendmentId.
* @hibernate.property
* column="ID_AMENDMENT"
*/
public Integer getAmendmentId() {
return amendmentId;
}

/**
* Sets the value of amendmentId.
* @param amendmentId The value to assign amendmentId.
*/
public void setAmendmentId(Integer amendmentId) {
this.amendmentId = amendmentId;
}

/**
* Returns the value of deponentNumber.
* @hibernate.property
* column="NO_DEPONENT"
*/
public Integer getDeponentNumber() {
return deponentNumber;
}

/**
* Sets the value of deponentNumber.
* @param deponentNumber The value to deponentNumber actionId.
*/
public void setDeponentNumber(Integer deponentNumber) {
this.deponentNumber = deponentNumber;
}

private Integer id;

/**
* @return the item DeponenentId
*
* @hibernate.id
* column="ID_DEPONENT"
* generator-class="assigned"
*/
public String getId() {
return id.toString();
}
public Integer getIdInt() {
return id;
}

public void setId(String string) {
id = new Integer(string);
}

public String getDeponentId() {
return getId();
}

public Integer getDeponentIdInt() {
return id;
}

/**
* @return the name of the business class managing this DAO object.
*/
public String getBOClassName() {
return "AmdDeponent";
}

public String toString() {
return "AmdDeponent:" + getId();
}

}